ramnit | 83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba

General

Target

83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba.exe
Size

1.1MB
MD5

34482717578b6cddb0bc5b48e3288b70
SHA1

abe2156d3efaba6f3a6d2be3acab63fcc7145667
SHA256

83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba
SHA512

2f81a0de9151834a9eb923e9ac90eba75bea36e43b97e97a69bca75ffa3de2d37cc44d50dffab5b276e541475a0e610f880e1bfe23a5146aac863822d0acba52
SSDEEP

24576:cb7S5jCNqwooJVSgJgVSv8PMLWePcbWmxB7PyO:q7S52NqwooJVSgJgVCqB7

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 2 IoCs

pid	Process
3992	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe
1696	DesktopLayer.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0006000000022e0c-134.dat	upx
behavioral2/files/0x0006000000022e0c-135.dat	upx
behavioral2/files/0x0007000000022e0e-137.dat	upx
behavioral2/files/0x0007000000022e0e-139.dat	upx
behavioral2/memory/3992-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1696-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7C39.tmp	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375796138"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30997918"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3638836676"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{03ADA7D3-6992-11ED-B696-C264E7FE3618} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3638682368"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30997918"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1696	DesktopLayer.exe
1696	DesktopLayer.exe
1696	DesktopLayer.exe
1696	DesktopLayer.exe
1696	DesktopLayer.exe
1696	DesktopLayer.exe
1696	DesktopLayer.exe
1696	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3900	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3900	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1572	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba.exe
3900	iexplore.exe
3900	iexplore.exe
2888	IEXPLORE.EXE
2888	IEXPLORE.EXE
2888	IEXPLORE.EXE
2888	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1572 wrote to memory of 3992	1572	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba.exe	81
PID 1572 wrote to memory of 3992	1572	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba.exe	81
PID 1572 wrote to memory of 3992	1572	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba.exe	81
PID 3992 wrote to memory of 1696	3992	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe	82
PID 3992 wrote to memory of 1696	3992	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe	82
PID 3992 wrote to memory of 1696	3992	83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe	82
PID 1696 wrote to memory of 3900	1696	DesktopLayer.exe	83
PID 1696 wrote to memory of 3900	1696	DesktopLayer.exe	83
PID 3900 wrote to memory of 2888	3900	iexplore.exe	84
PID 3900 wrote to memory of 2888	3900	iexplore.exe	84
PID 3900 wrote to memory of 2888	3900	iexplore.exe	84

C:\Users\Admin\AppData\Local\Temp\83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba.exe
"C:\Users\Admin\AppData\Local\Temp\83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcba.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1572
- C:\Users\Admin\AppData\Local\Temp\83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe
  C:\Users\Admin\AppData\Local\Temp\83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3992
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1696
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3900
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3900 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2888

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\83bd2c7a12eccda18c9febd714a7c9746446073b6801d6bded367f4e3eaebcbaSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1572-132-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1572-140-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1696-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3992-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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